Buellia maharajensis: New Lichen Species Discovered in Mathikettan Shola National Park, Kerala — Biodiversity Significance and UPSC Angle

Why in News

A new lichen species, Buellia maharajensis, has been discovered from Mathikettan Shola National Park, Idukki district, Kerala. The discovery was reported on September 8, 2026, and published in Taiwania — an international peer-reviewed botanical journal from National Taiwan University. The discovery was made by scientists from Maharaja's College (Ernakulam), Kerala Forest Research Institute (KFRI), and CSIR-National Botanical Research Institute (CSIR-NBRI), Lucknow. The species is named after Maharaja's College in recognition of its contributions to botanical research.

Background

What are Lichens?

Lichens are composite organisms — not a single species, but a symbiotic association between a fungus (mycobiont) and a photosynthetic partner, either a green alga or a cyanobacterium (photobiont). The fungus provides the structural framework and protection; the alga/cyanobacterium provides carbohydrates through photosynthesis. This mutualistic relationship allows lichens to survive in extreme environments — from arctic tundra to tropical rock faces — where neither organism could survive alone.

• Growth forms: Crustose (crust-forming, tightly attached to substrate), foliose (leaf-like, partially attached), fruticose (shrub-like, hanging or erect)
• Buellia maharajensis is a crustose, saxicolous lichen — it grows as a crust on rock surfaces (saxicolous = rock-dwelling)
• Ecological role: Lichens are pioneer species — they colonise bare rock and initiate soil formation through physical and chemical weathering; they are also important bioindicators of air quality (sensitive to sulfur dioxide pollution)
• Medicinal and economic value: Lichens produce unique secondary compounds (usnic acid, atranorin, parietin) with antimicrobial, antifungal, and UV-protective properties. They are used in perfumery (oakmoss), traditional medicine, and dye production

About Mathikettan Shola National Park

• Location: Idukki district, Kerala (Anamalai Hills, part of the Western Ghats)
• Established: 2003
• Area: ~12.82 sq km (one of Kerala's smaller but ecologically important national parks)
• Elevation: ~1,300–1,600 metres above sea level — montane elevation typical of shola-grassland ecosystems
• Ecosystem type: Shola-grassland mosaic — a unique tropical montane ecosystem of the Western Ghats where dense, stunted evergreen forests (sholas) occur in valley depressions, interspersed with rolling grasslands on the slopes
• Biodiversity: Harbours endemic flora and fauna; Buellia maharajensis is the 4th new-to-science lichen species described from this park, reflecting its exceptional cryptogamic (non-flowering plant and lichen) biodiversity

Current Developments

About Buellia maharajensis

Previous New Lichen Discoveries from Mathikettan Shola

The fact that Buellia maharajensis is the fourth new-to-science lichen from a single ~12.82 sq km national park is remarkable and underscores the extraordinary biodiversity density of Western Ghats shola ecosystems. Earlier new lichens from this park include Buellia ghattensis and Pyxine janakiae (among others).

Key Facts — Quick Reference

• Lichen = fungus + alga/cyanobacterium (symbiosis)
• Crustose = crust-forming growth form | Saxicolous = rock-dwelling
• Mathikettan Shola NP: Idukki, Kerala; established 2003; ~1,300–1,600m elevation
• Published in Taiwania (international peer-reviewed journal)
• Institutions: Maharaja's College + KFRI + CSIR-NBRI
• 4th new lichen species from this single national park

Constitutional Provisions

• Article 48A — DPSP: State shall endeavour to protect and improve the environment and safeguard forests and wildlife
• Article 51A(g) — Fundamental Duty: It is the duty of every citizen to protect and improve the natural environment including forests, lakes, rivers and wildlife
• Article 21 — Right to Life: The Supreme Court in Subhash Kumar v. State of Bihar (1991) interpreted Article 21 to include the right to a healthy environment — protecting biodiversity-rich habitats like Mathikettan Shola flows from this
• Schedule VII, List III, Entry 17B — Protection of wild animals and birds — Concurrent List subject, allowing both Union and State legislation (WPA, 1972 and State Forest Acts)

Legal Framework

• Wildlife Protection Act (WPA), 1972 (amended 2022): Provides for declaration and management of National Parks and Wildlife Sanctuaries; Mathikettan Shola is protected under this Act. Schedule VI of WPA (now repealed in 2022 amendment) and the new penalty structure reinforce protection
• Biological Diversity Act (BDA), 2002: Governs access to biological resources and benefit-sharing from their use. Any commercial application of Buellia maharajensis's unique compounds would require approval from the National Biodiversity Authority (NBA) and potentially the State Biodiversity Board (Kerala SBB)
• Forest Conservation Act (FCA), 1980 (now Van Sanrakshan Evam Janpadiya Vanabhumi Adhiniyam, 2023): Governs any diversion of forest land; the national park's forest cannot be diverted without Central government clearance
• Environment Protection Act (EPA), 1986: Umbrella legislation empowering Central Government to take measures for environmental protection; Western Ghats Eco-Sensitive Zones are notified under EPA
• CITES (Convention on International Trade in Endangered Species): If Buellia maharajensis or its compounds have commercial value, international trade would be regulated under CITES (India is a signatory; ratified 1976)

Institutional Framework

• Botanical Survey of India (BSI): Under MoEFCC; the primary body for plant (including lichen) taxonomy and species documentation in India. Discoveries like Buellia maharajensis may eventually be formally lodged with BSI's herbaria
• CSIR-NBRI (National Botanical Research Institute), Lucknow: Conducts research on plant resources, medicinal plants, and cryptogams; one of the three institutions behind this discovery
• KFRI (Kerala Forest Research Institute): State-level institute under the Government of Kerala; focuses on forest ecology, biodiversity assessment, and conservation science
• National Biodiversity Authority (NBA): Statutory body under the Biological Diversity Act, 2002; regulates bio-resource access and benefit-sharing
• MoEFCC (Ministry of Environment, Forest and Climate Change): Notifies protected areas, eco-sensitive zones, and administers wildlife and forest laws
• Western Ghats Ecology Expert Panel (WGEEP / Gadgil Committee, 2011): Recommended highest protection for Mathikettan Shola type ecosystems; the Kasturirangan Committee (2013) refined this into a more development-sensitive framework

Environmental Dimensions

Western Ghats Biodiversity Significance:

• The Western Ghats are one of the world's 36 biodiversity hotspots (Conservation International classification) — areas with exceptional levels of plant endemism and severe habitat loss
• The Western Ghats are a UNESCO World Heritage Site (2012) — 39 natural properties across Kerala, Tamil Nadu, Karnataka, Goa, and Maharashtra
• The shola-grassland ecosystem is a type restricted to South Indian hills above 1,200m and is critically important for endemic species found nowhere else on Earth
• Lichens serve as bioindicators of ecosystem health — their presence in diversity indicates clean air, low pollution, and intact habitat. A new lichen discovery signals a well-preserved ecosystem
• Climate change threat: Rising temperatures are pushing shola-grassland boundaries upslope — a process called "montane biome shift" — that could eventually squeeze shola habitats to vanishing point at high elevations

Nagoya Protocol: India ratified the Nagoya Protocol on Access and Benefit Sharing (ABS) in 2012 under the Convention on Biological Diversity (CBD). Any commercial bioprospecting of Buellia maharajensis must follow ABS norms, ensuring benefit-sharing with local communities and the State.

Social Dimensions

• Local tribal communities (Muthuvan, Mannan, Hill Pulaya) depend on shola-grassland ecosystems for non-timber forest products and cultural practices. New species discoveries reinforce arguments for protecting these habitats, which also protects indigenous livelihoods
• The Forest Rights Act (FRA), 2006 recognises forest-dwelling tribal communities' rights — their co-existence with biodiversity hotspots like Mathikettan Shola can be a model for rights-based conservation

Challenges

• Habitat loss: Despite national park status, encroachments at park fringes and climate change are degrading shola-grassland habitats
• Taxonomic undercounting: India's lichen diversity is vastly understudied — estimates suggest India has 2,500+ lichen species but formal documentation covers far fewer. Lack of trained lichenologists limits discovery pace
• Invasive species: Lantana camara and Eupatorium (invasive weeds) degrade shola understory, reducing microhabitats for saxicolous lichens
• Tourism pressure: Unregulated ecotourism near national park boundaries disturbs sensitive cryptogamic communities

Government Initiatives

• Project Tiger and Project Elephant: Large mammal conservation programs that indirectly protect entire ecosystems including lichen habitats
• National Mission for a Green India (GIM): Under NAPCC (National Action Plan on Climate Change) — focuses on increasing forest cover and ecosystem restoration
• Eco-Sensitive Zones (ESZ) around National Parks: MoEFCC notifies buffer zones around national parks to prevent incompatible development on their fringes
• Biodiversity Heritage Sites (BHS): Under the Biological Diversity Act; local bodies can notify BHS — areas of biological, ecological and cultural significance

Way Forward

The Kasturirangan Committee Report (2013) identified 37% of the Western Ghats area as ecologically sensitive and recommended a graded protection framework. For shola ecosystems specifically, the 2nd ARC and the National Biodiversity Action Plan recommend:

• Establishing a National Cryptogam Mission to systematically survey and document India's lichen, moss, and fern diversity — an area massively understudied relative to its ecological and medicinal importance
• Strengthening benefit-sharing mechanisms under the Nagoya Protocol so local communities gain tangibly from bioprospecting discoveries like Buellia maharajensis
• Integrating lichen monitoring into national air quality and ecosystem health assessment frameworks (they are far more sensitive than most plant-based monitors)

Possible Mains Questions

1. "The discovery of new species in India's protected areas is both a celebration and a warning." Examine this statement in the context of the Western Ghats biodiversity crisis. (GS-III, 250 words)
2. What is the significance of the shola-grassland ecosystem of the Western Ghats? What legal and institutional frameworks protect it, and what are the remaining gaps? (GS-III, 250 words)

Possible Prelims MCQs

1. Q: Buellia maharajensis, recently discovered, is which type of organism?
   Ans: A lichen (symbiotic association of a fungus and alga/cyanobacterium) — specifically a crustose, saxicolous lichen
2. Q: Mathikettan Shola National Park is located in which district of Kerala?
   Ans: Idukki district
3. Q: Lichens are considered good bioindicators of:
   Ans: Air quality (they are sensitive to sulfur dioxide and other air pollutants)
4. Q: The Biological Diversity Act, 2002 established which statutory body for regulating access to biological resources?
   Ans: National Biodiversity Authority (NBA)
5. Q: Which of the following correctly describes a 'crustose' lichen?
   Ans: A lichen that forms a crust tightly adhered to its substrate (rock, bark, or soil) with no clearly differentiated lower surface

Essay Dimensions

1. Biodiversity beyond tigers: India's invertebrate and cryptogam conservation deficit
2. Traditional knowledge and bioprospecting: who benefits when nature's secrets are discovered?
3. Western Ghats: the conflict between development and ecological wealth
4. Climate change and montane ecosystems: the shrinking shola story
5. Science in the service of conservation: the role of academic institutions in India's biodiversity documentation

Interview Questions

1. What distinguishes a lichen from a moss or a fungus? Why do lichenologists say lichens are "not one organism"?
2. How does the Nagoya Protocol govern who benefits when a new species with commercial potential is discovered in India?
3. The Gadgil and Kasturirangan reports gave different recommendations for the Western Ghats. Which approach do you think is more appropriate, and why?
4. Why are shola-grassland mosaics so ecologically unique? What threatens them that doesn't threaten lowland forests?
5. India has signed the Convention on Biological Diversity (CBD) and the Nagoya Protocol. What obligations do these place on Indian research institutions discovering new species?

FAQ

What is Buellia maharajensis?

Buellia maharajensis is a new-to-science lichen species discovered at Mathikettan Shola National Park, Idukki, Kerala, at ~1,351m elevation. It is a crustose (crust-forming), saxicolous (rock-dwelling) lichen. Published in Taiwania (Sept 8, 2026) by scientists from Maharaja's College, KFRI, and CSIR-NBRI.

What is a lichen, and why does it matter for UPSC?

A lichen is a symbiotic composite of a fungus and a photosynthetic partner (alga or cyanobacterium). It is ecologically important as a pioneer species and bioindicator of air quality. For UPSC, lichen discoveries from protected areas signal biodiversity richness and are linked to Biodiversity Act, Western Ghats ecology, and conservation frameworks.

Where is Mathikettan Shola National Park?

Mathikettan Shola National Park is in Idukki district, Kerala, in the Anamalai Hills (Western Ghats). Established in 2003, it covers ~12.82 sq km at elevations of ~1,300–1,600 metres. It supports shola-grassland ecosystems unique to the South Indian high hills.

Is the Western Ghats a UNESCO World Heritage Site?

Yes. The Western Ghats were inscribed as a UNESCO Natural World Heritage Site in 2012. They are also one of the world's 36 biodiversity hotspots, as classified by Conservation International.

Further Reading

• MoEFCC — Protected Area Network in India: https://moef.gov.in
• Botanical Survey of India: https://bsi.gov.in
• National Biodiversity Authority: https://nbaindia.org
• Convention on Biological Diversity (CBD): https://www.cbd.int